ffmpeg flv/mp4 -

Rick Stevens ricks at alldigital.com
Thu Sep 13 17:03:42 UTC 2012


On 09/12/2012 02:52 PM, Bob Goodwin - Zuni, Virginia, USA uttered this 
comment:
> On 12/09/12 12:36, Rick Stevens types:
>
>
> Get on the server with the flv files and use:
>
>      ffmpeg -i input.flv -sameq -ar 22050 output.mp4
>
> Replace "input.flv" with the source filename and "output.mp4" with your
> desired output file name. That should do it.
>
>     I tried that earlier but don't no how to deal with the errors.
>
>         [root at box7 dwhelper]# ffmpeg -i 3852374-xxxx_bashing_.flv -sameq
>         -ar 22050 output.mp4
>         WARNING: gnome-keyring:: couldn't connect to:
>         /run/user/bobg/keyring-66uQyY/pkcs11: No such file or directory
>         ffmpeg version 0.10.4 Copyright (c) 2000-2012 the FFmpeg developers
>            built on Jul 20 2012 22:00:57 with gcc 4.7.0 20120507 (Red
>         Hat 4.7.0-5)
>            configuration: --prefix=/usr --bindir=/usr/bin
>         --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
>         --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64
>         --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
>         -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64
>         -mtune=generic' --enable-bzlib --disable-crystalhd
>         --enable-gnutls --enable-libass --enable-libcdio
>         --enable-libcelt --enable-libdc1394 --disable-indev=jack
>         --enable-libfreetype --enable-libgsm --enable-libmp3lame
>         --enable-openal --enable-libopenjpeg --enable-libpulse
>         --enable-librtmp --enable-libschroedinger --enable-libspeex
>         --enable-libtheora --enable-libvorbis --enable-libv4l2
>         --enable-libvpx --enable-libx264 --enable-libxvid
>         --enable-x11grab --enable-avfilter --enable-postproc
>         --enable-pthreads --disable-static --enable-shared --enable-gpl
>         --disable-debug --disable-stripping --shlibdir=/usr/lib64
>         --enable-runtime-cpudetect
>            libavutil      51. 35.100 / 51. 35.100
>            libavcodec     53. 61.100 / 53. 61.100
>            libavformat    53. 32.100 / 53. 32.100
>            libavdevice    53.  4.100 / 53.  4.100
>            libavfilter     2. 61.100 /  2. 61.100
>            libswscale      2.  1.100 /  2.  1.100
>            libswresample   0.  6.100 /  0.  6.100
>            libpostproc    52.  0.100 / 52.  0.100
>         [flv @ 0x968260] max_analyze_duration 5000000 reached at 5014000
>         Input #0, flv, from '3852374-left_politicizes_911_by_bashing_.flv':
>            Duration: 00:03:18.62, start: 0.000000, bitrate: 40 kb/s
>              Stream #0:0: Audio: aac, 22050 Hz, mono, s16
>         Incompatible sample format 's16' for codec 'aac', auto-selecting
>         format 'flt'
>         [NULL @ 0x96f3e0] Codec is experimental but experimental codecs
>         are not enabled, see -strict -2
>         Output #0, mp4, to 'output.mp4':
>              Stream #0:0: Audio: none, 22050 Hz, mono, flt, 128 kb/s
>         Stream mapping:
>            Stream #0:0 -> #0:0 (aac -> aac)
>         Error while opening encoder for output stream #0:0 - maybe
>         incorrect parameters such as bit_rate, rate, width or height

Try rerunning the command but include "-strict experimental" (line
below may be wrapped due to mail message width...should be all on one
line):

	ffmpeg -strict experimental -i 3852374-xxxx_bashing_.flv -sameq -ar 
22050 output.mp4
----------------------------------------------------------------------
- Rick Stevens, Systems Engineer, AllDigital    ricks at alldigital.com -
- AIM/Skype: therps2        ICQ: 22643734            Yahoo: origrps2 -
-                                                                    -
-        Is it progress if a cannibal uses a knife and fork?         -
-                                  -- Stanislaw J. Lec               -
----------------------------------------------------------------------


More information about the users mailing list